When comparing Sony X900E 49" (XBR49X900E) vs LG C7P OLED 55" (OLED55C7P), the Slant community recommends Sony X900E 49" (XBR49X900E) for most people. In the question“What are the best TVs?”Sony X900E 49" (XBR49X900E) is ranked 4th while LG C7P OLED 55" (OLED55C7P) is ranked 118th. The most important reason people chose Sony X900E 49" (XBR49X900E) is:

The X900E looks true-to-life with really deep blacks, clear details, and captivating colors.
Pictures look realistic with lots of details. There’s great depth to them and you’ll be able to see everything in the picture stand out.
Dark scenes are excellent with nice shadow details that are not overly dark to the point where some details get drowned out. This is thanks to really deep black levels, enabled by the panel’s contrast ratio of about 5500:1 which means it can produce blacks that are 5500 times darker than the brightest white. This can be pushed even further to over 6500 with local dimming.
The colors are lifelike and accurate even without any calibration by the user. They will look really vibrant even in bright scenes because of the panel’s high peak brightness levels of ~500 nits for SDR & ~550 nits for HDR.
Even in a decently lit environment, the X900E’s picture quality can still hold up as the panel is great at handling reflections and it can get bright enough to fight off glare.

Pros

Pro

Excellent picture quality

Pictures look realistic with lots of details. There’s great depth to them and you’ll be able to see everything in the picture stand out.

Dark scenes are excellent with nice shadow details that are not overly dark to the point where some details get drowned out. This is thanks to really deep black levels, enabled by the panel’s contrast ratio of about 5500:1 which means it can produce blacks that are 5500 times darker than the brightest white. This can be pushed even further to over 6500 with local dimming.

The colors are lifelike and accurate even without any calibration by the user. They will look really vibrant even in bright scenes because of the panel’s high peak brightness levels of ~500 nits for SDR & ~550 nits for HDR.

Even in a decently lit environment, the X900E’s picture quality can still hold up as the panel is great at handling reflections and it can get bright enough to fight off glare.

Pro

Google Assistant is available

The X900E runs on Android TV that has Google Assistant. It has voice commands that are pretty useful as you can open apps with it, ask for the weather, and even turn the TV off.

Pro

Excellent at upscaling low-res content

The X900E can upscale 480p, 720p, 1080p content to 4K with no issues. All the details are preserved and most won't notice any imperfections.

Pro

Virtually no reflections

The X900E's panel has a semi-gloss finish that significantly reduces the intensity of glare.

Pro

Great ecosystem of third-party apps

The X900E runs on Android TV that has access to the Google Play Store. The Play Store has a nice selection of apps, but normal Android apps won't work unless they support Android TV.

Pro

Interface is ads-free

There are no ads on the X900E's interface.

Pro

Excellent at handling highly dynamic content

The X900E can display fast-paced or rapidly-moving objects very well without any trails behind it. The panel only requires ~11ms to fully change the pixels color, which eliminates virtually all motion blur. It also has a native refresh rate of 120Hz that makes images look smoother.

Pro

Great versatility

Apart from being an excellent TV for movies, the X900E is a decent choice for gaming and sports thanks to its decent input lag, low motion blur, great screen uniformity, and a 120 Hz native refresh rate that makes images look smoother.

The input lag of ~35ms is sufficient for most gamers, apart from competitive ones, to stay in sync with what's on the screen. The low motion blur of ~11ms and a refresh rate of 120 Hz ensures that everything will look smooth - fast-moving objects won't leave any trails on the screen.

It’s also viable for watching sports because the panel also has no issues with displaying large, same-color objects on screen, like football fields.

Pro

Great at handling glare

Even in a decently lit room, the X900E's picture quality will remain more or less the same as in a dark room.

The colors will still look vibrant because the panel is bright enough to fight off glare. It has peak brightness levels of ~500 nits for SDR & ~550 nits for HDR, and reflections are also significantly reduced by the panel's semi-gloss finish.

Pro

Excellent for HDR content

On top of the excellent picture quality, the X900E has everything essential to an immersive HDR experience: decent local dimming, great coverage of HDR colors, and high HDR peak brightness level.

Its excellent black levels are further improved with local dimming, which can make parts of the screen darker when the image calls for it. This results in an increase in overall picture quality with black levels becoming much deeper, so highlights will stand out further.

The panel can reproduce the wide range of colors required for true HDR playback because of its wide color gamut, which covers ~65% of the standard colors required for HDR according to the Rec. 2020 color space. This is considered great for reproducing HDR details, and it can display these colors accurately at different brightness levels.

Along with the the high peak brightness level of ~550 nits, HDR scenes will look stunning and you'll be able to see HDR details really pop.

Pro

Ideal for watching with a crowd

Even those who sit at an angle to the panel are able to experience the exceptional picture quality of the LG C7P thanks top it's wide viewing angles.

Pro

Works well in a dark room

The LG C7P is an excellent option for those looking for a high-quality home theater TV thanks to its exceptional picture quality that only a couple of competitors can match. This TV can reproduce some bright and crisp colors along with some truly inky dark spots on the screen.

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Cons

Con

Bad sound quality

The sound quality of X900E's built-in speakers is bad. It can't produce much bass and sounds rather flat. There is also noticeable distortion at high volumes.

Con

Lacks support for Dolby Vision

The X900E currently only supports the HDR10 format for HDR content.

Con

Not suitable for group watching

The X900E has a narrow viewing angle that makes it unsuitable for group watching.

Its picture quality gets worse when viewed from off-center angles. At ≥20° away from the center, the blacks start degrading into greys and colors will start looking dull. Brightness levels start decreasing at ≥50° away from the center.

Con

Requires calibration

You'll need to spend some time calibrating the TV in order to take the advantage of its excellent overall picture quality because the out-of-the-box color accuracy of the LG C7P is quite low.

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